Sampling mean and population mean

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Reference no: EM1393365

Drug manufacturer knows that for a certain antibiotics, the average number of doses ordered for a patient is 20. Steve Simmons, a salesman for the company, after looking at 1 day's prescription orders for the drug in his territory, announced that the sample mean for this drug should be lower. He said, "For any sample, the mean should be lower, since the sampling mean always understates the population mean because of sampling variation." Is there any truth to what Simmons said? Explain.

Reference no: EM1393365

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